RNF14FAD33K2 Equivalent & Substitute Parts

Part Overview

The RNF14FAD33K2 is a 33.2 kOhms ±1% metal film axial through-hole resistor rated at 0.25W (1/4W) manufactured by Stackpole Electronics Inc. This component features flame retardant coating and safety construction, operating across -55°C to 155°C. The part is Active status and ROHS3 compliant. Substitute parts are identified when equivalent resistance, tolerance, and power ratings are required but alternative packaging, enhanced specifications, or improved availability necessitate component replacement.

Substiute Parts

RNF14FAD33K2

Stackpole Electronics IncIn Stock: 863RNF14FAD33K2 Datasheet

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RNF14FTD33K2

Stackpole Electronics IncIn Stock: 25848RNF14FTD33K2 Datasheet

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RNMF12FTD33K2

Stackpole Electronics IncIn Stock: 2117RNMF12FTD33K2 Datasheet

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CMF5533K200BEEK

Vishay DaleIn Stock: 937CMF5533K200BEEK Datasheet

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CMF5533K200FHEB

Vishay DaleIn Stock: 2268CMF5533K200FHEB Datasheet

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CMF5533K200FKEB

Vishay DaleIn Stock: 4422CMF5533K200FKEB Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution logic is based on the following critical parameters: resistance value (33.2 kOhms), tolerance (±1%), composition (metal film), and axial package type. Substitute parts are grouped into two categories:

Direct Equivalent (Same Power Rating): RNF14FTD33K2 maintains identical electrical specifications and power rating (0.25W) with the same series designation. The only difference is packaging format (Cut Tape vs. Tape & Box).

Upgraded Substitutes (Higher Power Rating): RNMF12FTD33K2, CMF5533K200FKEB, CMF5533K200FHEB, and CMF5533K200BEEK provide 0.5W (1/2W) power rating, enabling use in applications requiring higher power dissipation capability while maintaining the 33.2 kOhms resistance value and ±1% tolerance (except CMF5533K200BEEK at ±0.1%). All substitute parts maintain axial package configuration and metal film composition.

Parameter Comparison

Engineering Selection Recommendations

RNF14FTD33K2 is the direct equivalent for applications requiring identical specifications. This part maintains all electrical parameters and operating characteristics of the original RNF14FAD33K2, with substitution driven solely by packaging availability (Cut Tape format).

RNMF12FTD33K2 is suitable for designs where increased power dissipation capacity (0.5W vs. 0.25W) is beneficial without modifying circuit topology. Stackpole Electronics Inc manufacture ensures consistent quality and compliance standards.

CMF5533K200FKEB and CMF5533K200FHEB provide Vishay Dale manufacturing with extended operating temperature range (-55°C to 175°C vs. 155°C) and moisture-resistant construction. Both maintain ±1% tolerance and 0.5W power rating. CMF5533K200FHEB offers improved temperature coefficient (±50ppm/°C) compared to the original specification.

CMF5533K200BEEK delivers the highest precision tolerance (±0.1%) and lowest temperature coefficient (±25ppm/°C) with 0.5W power rating and extended temperature range. This part is supplied in Bulk packaging and represents an upgrade for precision-critical applications.

All substitute parts maintain ROHS3 compliance and axial package configuration. Selection should be based on application requirements for power dissipation, temperature stability, tolerance precision, and packaging format compatibility with assembly processes.

Frequently Asked Questions (FAQ)

Q: Can RNF14FTD33K2 replace RNF14FAD33K2 directly? A: Yes. RNF14FTD33K2 is electrically and mechanically identical to RNF14FAD33K2. The only difference is packaging format (Cut Tape vs. Tape & Box). Both parts are from the same RNF series and maintain identical resistance, tolerance, power rating, and operating specifications.

Q: What is the primary difference between the original part and upgraded substitutes? A: Upgraded substitutes (RNMF12FTD33K2 and CMF series) provide 0.5W power rating compared to the original 0.25W rating. This allows operation in circuits with higher power dissipation requirements while maintaining the same 33.2 kOhms resistance value.

Q: Are Vishay Dale CMF series parts compatible with Stackpole RNF series applications? A: Yes, for applications where the electrical specifications align. CMF series parts maintain the same resistance, tolerance, and axial package configuration. CMF parts offer extended operating temperature range (-55°C to 175°C) and moisture-resistant construction. Verify circuit requirements for power rating and temperature coefficient before substitution.

Q: What does tolerance ±0.1% in CMF5533K200BEEK mean for circuit performance? A: CMF5533K200BEEK provides tighter resistance tolerance (±0.1%) compared to the original ±1% specification. This is beneficial for precision analog circuits, measurement equipment, and applications where resistor accuracy directly impacts circuit performance. Standard ±1% tolerance parts are sufficient for most general-purpose applications.

Q: Can I use a 0.5W rated resistor in place of a 0.25W rated resistor? A: Yes. A higher power-rated resistor can safely replace a lower power-rated resistor in the same circuit. The 0.5W rated parts provide additional thermal margin and reliability. Physical dimensions remain compatible within the axial package family.

Q: What is the difference between Cut Tape, Tape & Box, and Bulk packaging? A: Packaging format affects supply chain and assembly process compatibility. Cut Tape and Tape & Box are suitable for automated pick-and-place assembly. Bulk packaging is used for manual assembly or alternative distribution methods. Electrical specifications remain identical across all packaging formats for the same part number.

Q: Are all substitute parts ROHS3 compliant? A: Yes. All listed substitute parts maintain ROHS3 compliance status, ensuring compatibility with regulatory requirements for electronic equipment manufacturing and distribution.